CN112937368B - Driving balancing method and device for vehicle battery and vehicle - Google Patents
Driving balancing method and device for vehicle battery and vehicle Download PDFInfo
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- CN112937368B CN112937368B CN201911267687.4A CN201911267687A CN112937368B CN 112937368 B CN112937368 B CN 112937368B CN 201911267687 A CN201911267687 A CN 201911267687A CN 112937368 B CN112937368 B CN 112937368B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000178 monomer Substances 0.000 claims abstract description 54
- 238000004519 manufacturing process Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/13—Maintaining the SoC within a determined range
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a driving balance method and device of a vehicle battery and an automobile, wherein the method comprises the steps of obtaining the voltage of each battery monomer, the temperature of a module where each battery monomer is located and the capacity health state of each battery monomer after a battery management system is awakened; according to the voltage of each battery monomer, the temperature of a module where each battery monomer is located and a voltage hysteresis constant, looking up a table to calculate the charge state of each battery monomer; calculating the balance time of each battery monomer according to the difference between the charge state of each battery monomer and the charge state of the minimum voltage battery monomer, the rated capacity and the capacity health state of each battery monomer; and balancing each single battery according to the balancing time of each single battery. The invention solves the problem that the driving mileage of the new energy automobile is reduced due to the pressure difference of the single batteries.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a driving balancing method and device for an automobile battery and an automobile.
Background
In the production and manufacturing process of the lithium battery, due to slight differences of manufacturing process and production and processing, the inconsistency of capacity, internal resistance, voltage and the like of the single battery cell can be brought; and it is impossible to completely match all the cells in the process of grouping the cells into modules and grouping the modules into a battery pack. The inconsistency among different battery cores, such as the temperature field in the battery pack, the internal resistance of the single body, the capacity, the thickness of the pole piece and the like, can be enlarged in the storage and use processes.
The power lithium battery is a core part of the new energy automobile, and the state of the battery greatly influences the performance of the whole automobile so as to influence the user experience; the voltage difference between the battery single cells directly influences the capacity of the battery, and further influences the pure driving range of the vehicle; on the other hand, the large pressure difference can also cause the battery to be easily over-charged and over-discharged, thereby reducing the performance of the whole vehicle and shortening the service life of the battery. Due to inconsistency among the battery cores, the battery monomer pressure difference exists all the time; as the service life of the battery is prolonged, the pressure difference of the single batteries is gradually increased, and when the difference exceeds a certain range, the use of the battery and the performance of the whole vehicle are greatly influenced; the larger the difference, the smaller the battery capacity and the shorter the driving range.
Disclosure of Invention
The invention aims to provide a vehicle battery driving balancing method and device and a vehicle, and aims to solve the problem that the driving mileage of a new energy vehicle is reduced due to the pressure difference of a battery monomer.
The invention provides a driving balance method of a vehicle battery, which comprises the following steps:
after a BATTERY MANAGEMENT SYSTEM (BMS) is awakened, acquiring the voltage of each BATTERY cell, the temperature of a module in which each BATTERY cell is located and the capacity health state of each BATTERY cell;
according to the voltage of each battery monomer, the temperature of a module where each battery monomer is located and a voltage hysteresis constant, looking up a table to calculate the charge state of each battery monomer;
calculating the balance time of each battery monomer according to the difference between the charge state of each battery monomer and the charge state of the minimum voltage battery monomer, the rated capacity and the capacity health state of each battery monomer;
and balancing each battery monomer according to the balancing time of each battery monomer.
Further, according to the voltage of each battery cell, the temperature of the module where each battery cell is located and the voltage hysteresis constant, the formula for calculating the state of charge of each battery cell by looking up the table is specifically as follows:
soc _ n = lookup (Tavg _ n, hys, vn), where Soc _ n is a state of charge of the nth battery cell, tavg _ n is a temperature of a module where the nth battery cell is located, hys is a voltage hysteresis constant, and Vn is a voltage of the nth battery cell.
Further, according to the difference between the charge state of each battery cell and the charge state of the minimum voltage battery cell, the rated capacity, and the capacity health state of each battery cell, a formula for calculating the equalization time of each battery cell specifically includes:
Δ SOC = SOC _ n-SOC _ min, the SOC _ n is an nth cell state of charge, and the SOC _ min is a minimum voltage cell state of charge;
Δ t =Δsoc × C × SOH _ n × 3600/0.1/100, where Δ t is an equalization time of the nth battery cell, Δ SOC is a difference between a state of charge of the nth battery cell and a state of charge of the minimum voltage battery cell, C is a rated capacity, and SOH _ n is a capacity health state of the nth battery cell.
Further, calculating the equalization time of each cell according to the difference between the state of charge of each cell and the state of charge of the minimum voltage cell, the rated capacity, and the state of charge of each cell further includes:
when the difference between the voltage of any battery cell and the voltage of the battery cell with the minimum voltage is smaller than or equal to a preset voltage value, the balance time of any battery cell is not calculated.
Furthermore, each single battery starts balancing at the same time, and balancing is stopped according to the balancing time of each single battery.
Further, according to the balancing time of each battery cell, balancing each battery cell further includes:
comparing the balance time of each battery monomer with a preset time threshold value;
and when the balance time of any battery monomer is greater than a preset time threshold, carrying out balance according to the preset time threshold.
The invention provides a driving balancing device of a vehicle battery, which comprises:
the battery pack comprises an acquisition unit, a management unit and a management unit, wherein the acquisition unit is used for acquiring the voltage of each battery monomer, the temperature of a module where each battery monomer is located and the capacity health state of each battery monomer after the BMS is awakened;
the first calculation unit is used for calculating the charge state of each battery cell by looking up a table according to the voltage of each battery cell, the temperature of a module where each battery cell is located and a voltage hysteresis constant;
the second calculation unit is used for calculating the balance time of each single battery according to the difference between the charge state of each single battery and the charge state of the minimum voltage single battery, the rated capacity and the capacity health state of each single battery;
and the control unit is used for balancing each single battery according to the balancing time of each single battery.
Further, the first calculating unit is specifically configured to calculate a state of charge of each battery cell according to the voltage of each battery cell, the temperature of the module where each battery cell is located, and a voltage hysteresis constant, where a formula for calculating the state of charge of each battery cell is specifically:
soc _ n = lookup (Tavg _ n, hys, vn), where Soc _ n is a state of charge of the nth battery cell, tavg _ n is a temperature of a module in which the nth battery cell is located, hys is a voltage hysteresis constant, and Vn is a voltage of the nth battery cell.
Further, the second calculating unit is specifically configured to calculate the equalization time of each battery cell according to a difference between the state of charge of each battery cell and the state of charge of the minimum voltage battery cell, the rated capacity, and the state of health of the capacity of each battery cell, where a formula for calculating the equalization time of each battery cell is specifically:
Δ SOC = SOC _ n-SOC _ min, the SOC _ n is an nth cell state of charge, and the SOC _ min is a minimum voltage cell state of charge;
Δ t =Δsoc × C × SOH _ n × 3600/0.1/100, where Δ t is an equalization time of the nth battery cell, Δ SOC is a difference between a state of charge of the nth battery cell and a state of charge of the minimum voltage battery cell, C is a rated capacity, and SOH _ n is a capacity health state of the nth battery cell.
The invention provides an automobile which comprises the driving balance device of the automobile battery.
The implementation of the invention has the following beneficial effects:
according to the invention, the charge state of each battery monomer is calculated, the equalization time of each battery monomer is calculated, and equalization is carried out according to the equalization time of each battery monomer, so that the problem that the mileage of a new energy automobile is reduced due to the pressure difference of the existing battery monomers is solved, the vehicle does not need to be fully kept still, the voltage acquired during electrification can be used, the factors such as temperature and battery aging are considered, and the over-equalization is prevented by limiting the equalization time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a driving balancing method for a vehicle battery according to an embodiment of the present invention.
Fig. 2 is a structural diagram of a vehicle battery driving balancing apparatus according to an embodiment of the present invention.
Detailed Description
In this patent, the cell balancing time is calculated to balance each cell, and the following description will further explain this embodiment with reference to the drawings and examples.
As shown in fig. 1, an embodiment of the present invention provides a driving balance method for a vehicle battery, where the method includes:
step S11, after the battery management system is awakened, acquiring the voltage of each battery cell, the temperature of a module where each battery cell is located and the capacity health state of each battery cell.
It should be noted that, every car battery package includes a plurality of modules, and every module includes a plurality of battery monomer, and BMS is provided with the temperature acquisition point at every module, can gather the module temperature that battery monomer belongs to.
It should be further noted that the BMS is not required to be stood when the BMS is awakened and then collects the voltage to power on the battery.
And S12, calculating the charge state of each battery cell by looking up a table according to the voltage of each battery cell, the temperature of a module where each battery cell is located and a voltage hysteresis constant.
Specifically, the calculation formula for calculating the state of charge of each battery cell is as follows:
soc _ n = lookup (Tavg _ n, hys, vn), where Soc _ n is a state of charge of the nth battery cell, tavg _ n is a temperature of a module where the nth battery cell is located, hys is a voltage hysteresis constant, and Vn is a voltage of the nth battery cell.
It should be noted that the voltage hysteresis constant depends on the cell characteristics, and the voltage hysteresis constant is determined after the cell is determined.
And S13, calculating the balance time of each single battery according to the difference between the charge state of each single battery and the charge state of the minimum voltage single battery, the rated capacity and the capacity health state of each single battery.
Specifically, the formula for calculating the equalization time of each cell is:
Δ SOC = SOC _ n-SOC _ min, the SOC _ n is an nth cell state of charge, and the SOC _ min is a minimum voltage cell state of charge;
Δ t =Δsoc × C × SOH _ n × 3600/0.1/100, where Δ t is an equalization time of the nth battery cell, Δ SOC is a difference between a state of charge of the nth battery cell and a state of charge of the minimum voltage battery cell, C is a rated capacity, and SOH _ n is a capacity health state of the nth battery cell.
It should be noted that, in this step, the battery cell with the minimum voltage needs to be selected as a reference, and optionally, when the difference between the voltage of any battery cell and the voltage of the battery cell with the minimum voltage is less than or equal to a preset voltage value, the balancing time of any battery cell is not calculated. In this embodiment, if the difference between the voltage of any cell and the minimum voltage cell is less than or equal to 20mv, the equalization time of any cell is not calculated, which means that the cell voltage is very close to the minimum voltage cell voltage and the equalization operation is not needed.
And S14, balancing each single battery according to the balancing time of each single battery.
Optionally, the balancing of each battery cell is started simultaneously, and the balancing is stopped according to the balancing time of each battery cell. All cells start to equalize at the same time, but the time to stop is limited by the cell equalization time.
Step S14 further includes:
comparing the balance time of each battery monomer with a preset time threshold value;
and when the balance time of any battery monomer is greater than a preset time threshold, carrying out balance according to the preset time threshold.
It should be noted that the preset time threshold is used to limit the equalization time, so as to prevent the over-equalization situation caused by too long equalization time of any battery cell, and in this embodiment, the preset time threshold is 3600s, that is, the equalization time of each battery cell does not exceed one hour.
As shown in fig. 2, an embodiment of the present invention provides a driving balance device for a vehicle battery, where the device includes:
the acquiring unit 21 is configured to acquire a voltage of each battery cell, a temperature of a module in which each battery cell is located, and a capacity health state of each battery cell after the battery management system is awakened;
the first calculating unit 22 is configured to calculate the state of charge of each battery cell by looking up a table according to the voltage of each battery cell, the temperature of the module where each battery cell is located, and the voltage hysteresis constant;
the second calculating unit 23 is configured to calculate the equalization time of each battery cell according to the difference between the charge state of each battery cell and the charge state of the minimum voltage battery cell, the rated capacity, and the capacity health state of each battery cell;
and the control unit 24 is configured to balance each battery cell according to the balancing time of each battery cell.
Further, the first calculating unit 22 is specifically configured to calculate the state of charge of each battery cell according to the voltage of each battery cell, the temperature of the module where each battery cell is located, and the voltage hysteresis constant, where the formula for calculating the state of charge of each battery cell specifically is as follows:
soc _ n = lookup (Tavg _ n, hys, vn), where Soc _ n is a state of charge of the nth battery cell, tavg _ n is a temperature of a module in which the nth battery cell is located, hys is a voltage hysteresis constant, and Vn is a voltage of the nth battery cell.
Further, the second calculating unit 23 is specifically configured to calculate the balancing time of each battery cell according to the difference between the state of charge of each battery cell and the state of charge of the minimum voltage battery cell, the rated capacity, and the state of health of the capacity of each battery cell, where a formula for calculating the balancing time of each battery cell specifically is as follows:
Δ SOC = SOC _ n-SOC _ min, the SOC _ n is an nth cell state of charge, and the SOC _ min is a minimum voltage cell state of charge;
Δ t =Δsoc × C × SOH _ n × 3600/0.1/100, where Δ t is an equalization time of the nth battery cell, Δ SOC is a difference between a state of charge of the nth battery cell and a state of charge of the minimum voltage battery cell, C is a rated capacity, and SOH _ n is a capacity health state of the nth battery cell.
The embodiment of the invention provides an automobile which comprises the driving balance device of the automobile battery.
The implementation of the invention has the following beneficial effects:
according to the invention, the charge state of each battery monomer is calculated, the equalization time of each battery monomer is calculated, and equalization is carried out according to the equalization time of each battery monomer, so that the problem that the mileage of a new energy automobile is reduced due to the pressure difference of the existing battery monomers is solved, the vehicle does not need to be fully kept still, the voltage acquired during electrification can be used, the factors such as temperature and battery aging are considered, and the over-equalization is prevented by limiting the equalization time.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (7)
1. A driving balance method of a vehicle battery is characterized by comprising the following steps:
s11, after the battery management system is awakened, acquiring the voltage of each battery monomer, the temperature of a module where each battery monomer is located and the capacity health state of each battery monomer;
s12, according to the voltage of each battery monomer, the temperature of a module where each battery monomer is located and a voltage hysteresis constant, calculating the charge state of each battery monomer by looking up a table, wherein the calculation comprises the following steps: soc _ n = lookup (Tavg _ n, hys, vn), where Soc _ n is a state of charge of the nth battery cell, tavg _ n is a temperature of a module in which the nth battery cell is located, hys is a voltage hysteresis constant, and Vn is a voltage of the nth battery cell;
s13, calculating the balance time of each single battery according to the difference between the charge state of each single battery and the charge state of the minimum voltage single battery, the rated capacity and the capacity health state of each single battery;
s14, balancing each single battery according to the balancing time of each single battery; and starting the balance of each battery cell at the same time, and stopping the balance according to the balance time of each battery cell.
2. The method of claim 1, wherein the formula for calculating the equalization time of each cell based on the difference between the state of charge of each cell and the minimum voltage state of charge of the cell, the rated capacity, and the state of health of the capacity of each cell is:
Δ SOC = SOC _ n-SOC _ min, the SOC _ n is an nth cell state of charge, and the SOC _ min is a minimum voltage cell state of charge;
Δ t =Δsoc × C × SOH _ n × 3600/0.1/100, where Δ t is an equalization time of the nth battery cell, Δ SOC is a difference between a state of charge of the nth battery cell and a state of charge of the minimum voltage battery cell, C is a rated capacity, and SOH _ n is a capacity health state of the nth battery cell.
3. The method of claim 1, wherein the step S13 further comprises:
when the difference between the voltage of any battery cell and the voltage of the minimum voltage battery cell is less than or equal to a preset voltage value, the balance time of any battery cell is not calculated.
4. The method of claim 1, wherein the step S14 further comprises:
comparing the balance time of each battery monomer with a preset time threshold value;
and when the balance time of any battery monomer is greater than a preset time threshold, carrying out balance according to the preset time threshold.
5. A running equalization apparatus for a vehicle battery, the apparatus comprising:
the battery pack comprises an acquisition unit, a management unit and a management unit, wherein the acquisition unit is used for acquiring the voltage of each battery monomer, the temperature of a module where each battery monomer is located and the capacity health state of each battery monomer after the BMS is awakened;
the first calculation unit is used for calculating the charge state of each battery monomer by looking up a table according to the voltage of each battery monomer, the temperature of a module where each battery monomer is located and a voltage hysteresis constant, and comprises the following steps: soc _ n = lookup (Tavg _ n, hys, vn), where Soc _ n is a state of charge of the nth battery cell, tavg _ n is a temperature of a module in which the nth battery cell is located, hys is a voltage hysteresis constant, and Vn is a voltage of the nth battery cell;
the second calculation unit is used for calculating the balance time of each single battery according to the difference between the charge state of each single battery and the charge state of the minimum voltage single battery, the rated capacity and the capacity health state of each single battery;
the control unit is used for balancing each single battery according to the balancing time of each single battery; and starting the balance of each battery monomer at the same time, and stopping the balance according to the balance time of each battery monomer.
6. The apparatus according to claim 5, wherein the second calculating unit is specifically configured to calculate the equalization time of each cell according to a difference between the state of charge of each cell and the minimum voltage cell state of charge, a rated capacity, and a state of health of the capacity of each cell, and the formula for calculating the equalization time of each cell is specifically:
Δ SOC = SOC _ n-SOC _ min, the SOC _ n is an nth cell state of charge, and the SOC _ min is a minimum voltage cell state of charge;
Δ t =Δsoc × C × SOH _ n × 3600/0.1/100, where Δ t is an equalization time of the nth battery cell, Δ SOC is a difference between a state of charge of the nth battery cell and a state of charge of the minimum voltage battery cell, C is a rated capacity, and SOH _ n is a capacity health state of the nth battery cell.
7. A motor vehicle, characterized in that it comprises a ride equalizer device for a vehicle battery as claimed in claim 5 or 6.
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| CN106926741A (en) * | 2017-04-28 | 2017-07-07 | 胡楷 | New-energy automobile power-driven system and its battery electric quantity active equalization method |
| CN107351701A (en) * | 2017-06-07 | 2017-11-17 | 东莞市德尔能新能源股份有限公司 | Based on the multiple target self-adaptation control method that aging is balanced |
| CN109256834A (en) * | 2018-10-12 | 2019-01-22 | 华南理工大学 | Battery pack active equalization method based on cell health state and state-of-charge |
| CN110544801A (en) * | 2019-09-12 | 2019-12-06 | 河南理工大学 | Battery pack dual-target adaptive equalization control method based on health state |
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